20946764912 has 40 divisors (see below), whose sum is σ = 41019487680. Its totient is φ = 10361260800.

The previous prime is 20946764899. The next prime is 20946764921. The reversal of 20946764912 is 21946764902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2295014 + ... + 2304122.

It is an arithmetic number, because the mean of its divisors is an integer number (1025487192).

Almost surely, 2^20946764912 is an apocalyptic number.

It is an amenable number.

20946764912 is a deficient number, since it is larger than the sum of its proper divisors (20072722768).

20946764912 is a wasteful number, since it uses less digits than its factorization.

20946764912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10641 (or 10635 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 20946764912 in words is "twenty billion, nine hundred forty-six million, seven hundred sixty-four thousand, nine hundred twelve".